FR3145210B1 - Capteur de gaz compact de conception simple - Google Patents

Capteur de gaz compact de conception simple Download PDF

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Publication number
FR3145210B1
FR3145210B1 FR2300623A FR2300623A FR3145210B1 FR 3145210 B1 FR3145210 B1 FR 3145210B1 FR 2300623 A FR2300623 A FR 2300623A FR 2300623 A FR2300623 A FR 2300623A FR 3145210 B1 FR3145210 B1 FR 3145210B1
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FR
France
Prior art keywords
light source
gas sensor
light
enclosure
focus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR2300623A
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English (en)
Other versions
FR3145210A1 (fr
Inventor
Hélène Duprez
Arnaud Marchenay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elichens
Original Assignee
Elichens
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elichens filed Critical Elichens
Priority to FR2300623A priority Critical patent/FR3145210B1/fr
Priority to EP24152276.2A priority patent/EP4407300B1/fr
Publication of FR3145210A1 publication Critical patent/FR3145210A1/fr
Application granted granted Critical
Publication of FR3145210B1 publication Critical patent/FR3145210B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/031—Multipass arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Capteur (1) de gaz comportant une enceinte (2), le capteur comportant également : une source de lumière (10), configurée pour émettre une onde lumineuse (11) se propageant dans l'enceinte en formant, à partir de la source de lumière, un premier cône de lumière (Ω1);un photodétecteur de mesure (20) apte à détecter une onde lumineuse (14) émise par la source de lumière (10) et s'étant propagé à travers l'enceinte;la source de lumière et le photodétecteur de mesure étant supporté par un circuit imprimé (7); une surface réfléchissante de rang 1, formant une partie d'une ellipsoïde de révolution, présentant un premier foyer (P1-1) et un deuxième foyer (P1-2), la surface réfléchissante de rang 1 étant disposée face à la source de lumière (10), de façon à réfléchir le premier cône de lumière vers le deuxième foyer, la première surface réfléchissante formant une partie d'une ellipsoïde de révolution.
FR2300623A 2023-01-24 2023-01-24 Capteur de gaz compact de conception simple Active FR3145210B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2300623A FR3145210B1 (fr) 2023-01-24 2023-01-24 Capteur de gaz compact de conception simple
EP24152276.2A EP4407300B1 (fr) 2023-01-24 2024-01-17 Capteur de gaz compact de conception simple

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2300623 2023-01-24
FR2300623A FR3145210B1 (fr) 2023-01-24 2023-01-24 Capteur de gaz compact de conception simple

Publications (2)

Publication Number Publication Date
FR3145210A1 FR3145210A1 (fr) 2024-07-26
FR3145210B1 true FR3145210B1 (fr) 2025-01-31

Family

ID=86468877

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2300623A Active FR3145210B1 (fr) 2023-01-24 2023-01-24 Capteur de gaz compact de conception simple

Country Status (2)

Country Link
EP (1) EP4407300B1 (fr)
FR (1) FR3145210B1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5026992A (en) 1989-09-06 1991-06-25 Gaztech Corporation Spectral ratioing technique for NDIR gas analysis using a differential temperature source
WO2007064370A2 (fr) 2005-08-04 2007-06-07 Airware Inc. Detecteurs de gaz ndir extremement economiques
FR2995686B1 (fr) 2012-09-20 2016-12-23 Commissariat Energie Atomique Detecteur optique d'un gaz
FR3016214B1 (fr) 2014-01-07 2019-09-06 Commissariat A L'energie Atomique Et Aux Energies Alternatives Detecteur optique d'un gaz
FR3022999B1 (fr) * 2014-06-27 2017-06-16 Schneider Electric Ind Sas Chambre optique pour dispositif de detection de gaz
FR3095517B1 (fr) * 2019-04-25 2021-05-14 Elichens Capteur de gaz compact
CN114486790B (zh) * 2020-10-28 2023-10-20 旭化成微电子株式会社 气体检测装置

Also Published As

Publication number Publication date
FR3145210A1 (fr) 2024-07-26
EP4407300B1 (fr) 2026-04-22
EP4407300A1 (fr) 2024-07-31

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